Presentation
Patient presented with epistaxis and headache. Chest radiograph was ordered.
Patient Data
Age: 20 years
Gender: Female
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Chest x-ray demonstrates focal indentation of the distal aortic arch consistent with coarctation of the aorta. This is known as a figure of 3 sign.
Case Discussion
Figure 3 sign is seen in aortic coarctation and is formed by prestenotic dilatation of the aortic arch and left subclavian artery, indentation at the coarctation site (also known as the "tuck"), and post stenotic dilatation of the descending aorta.